Hi fellow hackers!

In QT-4.1.4, I'm trying to drop something on A QTreeWidget's headerItem(), with little success.

In the short example below, I can drag "Node 1" and "Node 2" and drop them on each other, but QT won't let me drop on the headerItem ("Node 0") even though I've set its ItemIsDropEnabled-flag. What can be done?

Qt Code: 
  1. #include <QApplication>
  2. #include <QTreeWidgetItem>
  3.  
  4. #define S(qstring) (qstring).toLatin1().constData()
  5.  
  6. class Tree : public QTreeWidget
  7. {
  8.   public:
  9.     Tree() : QTreeWidget() {
  10.         setColumnCount(1);
  11.         setDragEnabled(true);
  12.         setAcceptDrops(true);
  13.     }
  14.     bool dropMimeData(QTreeWidgetItem *droppedOn, int, const QMimeData *, Qt::DropAction) {
  15.         qDebug("Something dropped on %s", S(droppedOn->text(0)));
  16.         return true;
  17.     }
  18. };
  19.  
  20.  
  21. int main( int argc, char **argv )
  22. {
  23.     QApplication app( argc, argv );
  24.  
  25.     QTreeWidget *tree = new Tree;
  26.  
  28.  
  29.     i = new QTreeWidgetItem(tree);
  30.     i->setText(0, "Node 1");
  31.     i->setFlags(i->flags() | Qt::ItemIsDropEnabled);
  32.  
  33.     i = new QTreeWidgetItem(tree);
  34.     i->setText(0, "Node 2");
  35.     i->setFlags(i->flags() | Qt::ItemIsDropEnabled);
  36.  
  37.     tree->headerItem()->setText(0,"Node 0");
  38.     tree->headerItem()->setFlags(tree->headerItem()->flags() | Qt::ItemIsDropEnabled);
  39.  
  40.     tree->show();
  41.     app.exec();
  42.     return 0;
  43. }
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